ATTENUATOR
TEMPERATURE VARIABLE
DATA SHEET
FEATURES
Temperature Variable
Compact Package
Wideband Performance
Passive Gain Compensation
Rugged Construction
MIL-PRF-3933
PART SERIES:
WTVAXX00N0XSMT
APPLICATIONS
Power Amplifiers
Instrumentation
Mobile Networks
Point-to-Point Radios
Satellite Communications
Military Radios
Up/Down Converters
SHEET 1 OF 3
Dwg 1013075
EN 17-0444
Revision C
GENERAL DESCRIPTION
EMC Technology is the leading authority in temperature variable attenuators. Thermopad
®
temperature variable attenuators have been a
highly reliable passive solution for over temperature gain compensation for more than 20 years. All Thermopad
®
products can be qualified
for high-reliability and space applications.
ORDERING INFORMATION
Part Identifier:
WTVAXX00N0XSMT
X-Temperature Coefficient of Attenuation 1 x 10
N-Attenuation Shift Negative
XX-dB Value
-3
dB/dB/°
C
SPECIFICATIONS
1.0 ELECTRICAL
Nominal Impedance:
Frequency Range:
Power Rating:
Attenuation Values Available:
Attenuation Accuracy@ 25ºC:
VSWR@ 25ºC::
Peak Power
Temperature Coefficient Tolerance:
50 ohms
DC TO 20 GHz
200 Milliwatts full rated power to 125°C, derated linearly to 0 watts at 150°C.
2, 3, 4, 5, 6, 7 and 10dB
± 0.5 dB @ 15 GHz
± 1.0 dB @ 20 GHz
1.40:1 Typical DC-20 GHz
1.70:1 Maximum DC-20 GHz
2 Watts for 10µs pulse width @ 1% duty cycle
± 0.001 dB/dB/ºC
Temperature Coefficient of Attenuation:-0.003, -0.005, and -0.007 dB/dB/ºC
2.0 ENVIRONMENTAL
Operating Temperature:
Non-operating Temperature:
-55˚C to +150˚C
-65˚C to +150˚C
3.0 MARKING
Unit Marking:
None
4.0 QUALITY ASSURANCE
Sample Inspect Per ANSI/ASQC Z1.4 General Inspection, Level II, AQL=1.0.
Visual and Mechanical Examination for Conformance to Outline Drawing Requirements
Sample Inspection (Destructive Testing).
Form 423F119
Cage Codes: 24602 / 2Y194
Specifications are Subject to Change Without Notice
www.emc-rflabs.com • +1 772-286-9300
AS 9100, ISO 9001 and 14001 Certified
ATTENUATOR
TEMPERATURE VARIABLE
DATA SHEET
PART SERIES:
WTVAXX00N0XSMT
SHEET 2 OF 3
Dwg 1013075
EN 17-0444
Revision C
Select three (3) units from lot and measure DCA every 20ºC over the temperature range of
-55° to +125° Calculate using linear regression, the slope of the curve.
C
C;
Calculate TCA using the following formula:
=
Inspection in accordance with 824W107
Test Data Requirements:
No Data Required for Customer
Data Retention – 24 Months
@ 25°
5.0 PACKAGING
Standard:
Tape and Reel
6.0 MECHANICAL
Substrate Material:
Terminal Material:
Workmanship
Ground Plane:
Resistive Element:
Metric Dimensions:
Alumina
Thick Film, Nickel barrier solder plated
PER MIL-PRF-55342
Thick Film
Thick Film
Provided for reference only
Unless Otherwise Specified:
TOLERANCE: X.XX = ± 0.01
X.XXX = ± 0.005
Form 423F119
Cage Codes: 24602 / 2Y194
Specifications are Subject to Change Without Notice
www.emc-rflabs.com • +1 772-286-9300
AS 9100, ISO 9001 and 14001 Certified
ATTENUATOR
TEMPERATURE VARIABLE
DATA SHEET
PART SERIES:
WTVAXX00N0XSMT
SHEET 3 OF 3
Dwg 1013075
EN 17-0444
Revision C
7.0 SUGGESTED MOUNTING FOOTPRINT
Inches
Part Number
WTVAXX00N0XSMT
A
0.025
B
0.015
C
0.016
D
0.049
E
0.018
W
0.070
A
0.64
B
0.38
C
0.41
mm
D
1.24
E
0.46
W
1.78
Form 423F119
Cage Codes: 24602 / 2Y194
Specifications are Subject to Change Without Notice
www.emc-rflabs.com • +1 772-286-9300
AS 9100, ISO 9001 and 14001 Certified
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